Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF - Heraklion M15 | 2021/11/14 07:00 | Paulo Knippling v Alan Gleeson | 2-6,3-6 |
| ITF - Heraklion M15 | 2021/11/07 11:00 | Paulo Knippling v Christopher Patzanovsky | 2-6,2-6 |
| ITF - Portimao M25 | 2021/10/25 11:55 | Paulo Knippling v Jaime Faria | 3-6,2-6 |
| ITF - Loule M25 | 2021/10/10 12:00 | Paulo Knippling v Keanu Elias Immler | 4-6,2-6 |
| ITF - Sintra M25 | 2021/09/15 11:55 | Santiago Rodriguez Taverna v Paulo Knippling | 6-0,6-0 |
| ITF - Sintra M25 | 2021/09/08 12:45 | Jesse Flores v Paulo Knippling | 6-1,6-1 |
| ITF - Oldenzaal M15 | 2021/08/15 14:00 | Guy Den Heijer v Paulo Knippling | 6-3,6-4 |
| ITF - Monastir M15 | 2021/07/26 09:00 | Drew Baird v Paulo Knippling | 6-1,6-3 |
| ITF - Setubal M25 | 2021/10/03 11:30 | Rodrigo Deleu v Gabriel Elicha Navas | 1-6,2-6 |
| ITF - Sintra M25 | 2021/09/13 14:05 | Rodrigo Deleu v Joao Riquelme | 6-7,6-1,10-5 |
| ITF - Sintra M25 | 2021/09/05 12:00 | Keanu Elias Immler v Rodrigo Deleu | 6-7,6-1,10-4 |
| ITF - Idanha-A-Nova M25 | 2021/07/11 13:00 | Rodrigo Deleu v Digvijay Pratap Singh | 6-7,3-6 |
| FPT Portugal Series | 2020/06/22 19:00 | Tiago Fernandes v Rodrigo Deleu | 6-2,4-2 |